Leo needs to drive from boston to chicago. he planned to drive for 20 hours at an average of 50 mph. but, he drove at an average speed was 50 mph, how much earlier did he arrive in chicago than he originally planned?

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6

What dimensions can créate more than one triangle ?